Bow-fastener.



H. L. JEFFERY & A. W. WADSWORTH. BOW FASTENER.

APPLICATION FILED JAN. 30, 1914.

1, 1 27,255. Patented Feb 2, 1915.

4 3 Fig.1 5

Wi t'n/esses:

UNITED STATES PATENT onnron.

HAROLD L. JEFFERY AND ARTHUR W. VIADSWORTH, OF FORT THGMAS, KENTUCKY, ASSIGNORS TO THE WADSYVOIPVTH WATCH CA$E COMPANY, A. CORPORATION OF KENTUCKY.

BOW-FASTENER.

To all whom it may concern:

Be it known that we, HAROLD L. Jnrrnny and ARTHUR W. WADswon'rH, citizens of the United States, and residents of Fort Thomas, in the county of Campbell and State of Kentucky, have invented certain new and useful Improvements in Bow- Fasteners, of which the following is a specification.

Our invention relates to jewelry and its object is to provide a construction of the bow and pendant of the watch, whereby a strong and reliable connection is made between these parts.

Our invention consists in the parts and in the details of construction and arrangement of parts as will hereinafter be more fully described and claimed.

In the drawing: Figure 1 is a front elevation of a watch embodying our invention and Fig. 2 is a vertical transverse section of the pendant and bow and fastening means as shown in Fig. 1.

As we prefer to construct our invention, the watch 1 has a pendant 2 of any approved construction and formation and attached by any suitable means to the watch case, and, as here shown, being interiorly hollow to accommodate the winding mechanism.

The bow 3 has the cross-bars or hubs 4: flanking the ends 5 of the pendant, the inner faces of these hubs 4c and the outer ends 5 of the pendant being finished true and bearing against each other at the respective sides. The hubs d have bores 6 transversely through them which come in alinement with bores 7 extending longitudinally in the pendant 5; and, as shown in Figs. 1 and :2, pins 8 pass through the bores 6 in the hubs 4 and into the bores 7 in the pendant at the respective sides, thus pivoting the bow 3 on the pendant.

The bores 6 are of such diameter relative to the diameters of the parts 9 of the pins 8 that pass through them that the bow may swing relatively to the pin 8, but the bores 7 are of such diameter that the end parts 10 of the pins will fit tightly in them and be fixed and held stationary therein. The pins 8 have heads 11 which bear against the outer sides of the hubs 4 of the bow 3, so that when the pins 8 are driven tightlv into the bores 7 the heads 11 bear inwardly on the hubs a and hold them toward the ends of the pendant. In order that these heads 11 may Specification of Letters Eatent.

Patented Feb. 2, 1915.

Serial No. 815,360.

have the proper bulk and strength without excessive projection from the hubs 4, the outer sides of the hubs 4 may be conically countersunk, and the under sides of the heads 11 may be flatly conical to fit in the countersunk outer sides of the hubs The outer sides of the heads 11 may be rounded as shown and may be finished to correspond with the finish of the bow and pendant.

In order to facilitate the insertion of pins 8 and yet preserve the firmness with which the pins 8 are held in the bores 7 in the pendant, these bores 7 may be very slightly tapered from the ends of the pendant inward, and the parts 10 of the pins 8 which are to be held in these bores 7 correspondingly tapered. Preferably, the ends 12 of the pins 8 are rounded, so that they will be freely guided into the bores 7 during the assembly of the bow and pendant.

It is desirableto have the part that is driven into the pendant tapering for the reasons above given, but if the part that goes through the bow is also tapered and is to fit the opening in the bow with the right degree of accuracy to initially provide the proper pivotal bearing for the bow, then later, if there is wear at the head of the pin calling for the slight additional driving of the pin into the pendant to renew the binding effect of the head of the pin on the how, the tapered pin may wedge in the open ng in the bow and make the bow swing very t ghtly. and thus interfere with the control of this tightness of swinging which it is the purpose of the in ent on to provide for in the tighten ng of the head of the pin aga nst the bow. v

WVith the abo e provisions. the bow 3 may be assembled with the pendant 2 bv inserting the pins and driving them into the bores 7 as far as may be desired. so as to impart to the connect on between the bow and pendant the desired degree of resistance to swinging of the bow. In usual constructions this resistance is in some degree provided for by making the bow of stiff material and springing the ends of the bow into recesses in the pendant, and relying upon the stiffness of the bow to provide necessary pressure of the ends of the bow in the recesses of the pendant. WVith anv such construction with the parts that connect the bow to the pendant movable in the pendant during the swinging of the bow, the material of the bow is compelled to provide all of the strength and stiffness to produce the necessary friction and resistance By fixing the pivotal pins in the pendant and allowing the bow to swing on the pins, and by driving these pins in as far as may be required, no dependence is put upon the material of the bow for any stiffness or pressure; but the resistance is all provided by the friction between the bow and the pendant and between the bow and the head of the pin, while the pressure 13 positive and constant due to the fixing of the pin in the pendant.

Our improved construction is especially advantageous where the bow is not made of solid gold or other metal highly dependable for stifi'ness and resiliency, but is made of some baser metal as in gold-filled and electro-plated watches. With this improved fastening for the bow, the material of the bow need not be stronger than is required to resist the ordinary strains incident to the pull of the chain or fob on the bow in handling the watch, because the fixing of the pins in the pendant reinforces the material of the bow against outward springing of the ends parts of the bow, and relieves the bow of all tendency to spread and be detached from the watch.

The tightness of the fastening may be adjusted by driving the pins in as far as required, and if, after the watch has been in use for a considerable time, the bow swings too freely, a slight farther inward driving of the pins will provide the required tightness again.

The pins 8 or 8 may be very conveniently made of steel or nickel, while the bows may be made either of solid gold, or, in the filled or plated articles, may be made of bronze or some other suitable alloy.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In combination with the pendant and bow of a watch, a pivot having a tapered part, said pendant having an inwardly tapered bore receiving the tapered part of the pivot from the outside of the pendant, and the bow swinging on the pivot.

2. In combination with the pendant and bow of a watch, a pivot, a head on the pivot, and said pivot having a part tapered away from the head, said pendant having an inwardly tapered bore receiving the tapered part of the pivot from the outside of the pendant, the bow swinging on the pivot, and said head on the pivot confining the bow to the pendant axially of the pivot.

3. In combination with the pendant and bow of a watch, a pivot having a terminal tapered part and a straight part, the pendant having a tapered bore receiving the terminal tapered part of the pivot, and the bow having a straight bore receiving the straight part of the pivot whereby the bow swings on the pivot.

4. In combination with the pendant and bow of a watch, a pivot having a terminal tapered part and a straight part, the pendant having a tapered bore receiving the terminal tapered part of the pivot, and the bow having a straight bore receiving the straight part of the pivot, whereby the bow swings on the pivot, and a head on the pivot confining the bow to the pendant axially of the pivot.

5. In combination with the pendant and bow of a watch, a pivot fitting the bow loosely and driven into the pendant.

6. In combination with the pendant and bow of a watch, a pivot fitting the bow loosely and driven into the pendant, and a head on the pivot driven against the outer side of the bow and confining the bow to the pendant axially of the pivot.

7. In combination with the pendant and bow of a watch, a pivot having a terminal tapered part with a round end, said pendant having a tapered bore receiving the terminal tapered part and the rounded end facilitating the entrance of this part to said bore, said pivot being fixed by its tapered part fitting into the tapered bore, and said bow swinging on said pivot.

HAROLD L. JEFFERY. ARTHUR 'VV. IVADSWORTH. Witnesses:

CLARENCE PERDEW, CATHERINE DORAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

